Environmental Health Center, Dong-A University, Busan 49201, Korea.
Department of Preventive Medicine, Dong-A University, Busan 49201, Korea.
Int J Environ Res Public Health. 2020 Aug 28;17(17):6280. doi: 10.3390/ijerph17176280.
This study compares the heavy metal exposure levels of the population of abandoned metal mines, with high risks of environmental pollution and health effects. We used data from a two-stage abandoned metal mines survey (AMS, n = 4467). The Korea National Health and Nutrition Examination Survey (KNHANES) and the Korea National Environmental Health Survey (KNEHS) were used as general population data. Based on the sex and age distribution in the AMS, a simple random sampling was performed, so that the two datasets had the same distribution (KNHANES n = 1815, KNEHS n = 2328). Blood lead concentrations were slightly higher in the AMS than in KNEHS. Blood cadmium concentrations were similar between the two groups. However, the difference in urine cadmium concentrations was pronounced and statistically significant. Moreover, 30.6% of the AMS data for urine cadmium concentration exceeded the 95th percentile of the KNEHS data. The concentration of lead and cadmium in the residents of the abandoned metal mines, i.e., the vulnerable regions, was higher than that in the general population. It is necessary to monitor and manage the vulnerable regions via a more active and extensive survey system.
本研究比较了废弃金属矿区人群的重金属暴露水平，这些矿区存在高环境污染和健康影响风险。我们使用了两阶段废弃金属矿区调查（AMS，n=4467）的数据。韩国国家健康和营养检查调查（KNHANES）和韩国国家环境健康调查（KNEHS）被用作一般人群数据。根据 AMS 中的性别和年龄分布，进行了简单随机抽样，以使两个数据集具有相同的分布（KNHANES n=1815，KNEHS n=2328）。AMS 中的血液铅浓度略高于 KNEHS。两组血液镉浓度相似。然而，尿液镉浓度的差异明显且具有统计学意义。此外，AMS 中 30.6%的尿液镉浓度数据超过了 KNEHS 数据的第 95 百分位数。废弃金属矿区居民（即脆弱地区）的铅和镉浓度高于一般人群。有必要通过更积极和广泛的调查系统来监测和管理脆弱地区。
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